The first pair of Rosales families on this page (Rhamnaceae and Elaeagnaceae) contain several small trees and shrubs that are particularly invasive in many parts of New York. These include the autumn olive, Russian olive, common buckthorn, and glossy buckthorn.

The Rhamnaceae (buckthorn family) in New York contains three species of native shrubs (two New Jersey tea and one buckthorn species). It also contains two highly invasive non-native buckthorns, both of which are prohibited in New York.[1][2]

Maclura pomifera, osage-orange, is a shrub or small tree that has been widely cultivated throughout the continental U.S., but it is considered to be native only to southwestern Arkansas, southeastern Oklahoma, and Texas. It has been cultivated in New York, but only occasionally naturalizes.